How to specify the line length during formating

[IamMuuo]

Hi, I am aware that this extension formats my code to exactly 80 characters long in a single line.
I was wondering if its possible to specify the line length I wish my lines to be formatted to.
For example something like 120 characters long instead of the default 80

[IamMuuo]

After fiddling around for days I found out that all I needed was to pass the following argument to Dartfmt on vim
Here is the full command

:DartFmt --line-length=120